The best solution to backup your VPS data is to compress your files and folders into a single zip file and then upload it to a free file hosting service , after upload it will give you a link so you can download the zip file on your home pc or on another VPS and then you can decompress it.
for compressor I recommend 7zip which is a free software and can be downloaded from the following link :
http://www.7-zip.org/download.html
and for free file hosting service I recommend the following site :
http://ifile.it